Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: DTRTMIBLXYX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-672 A Howell MI 6664 SPRINT SPECTRUM L.P. 340      
517-798 A Howell MI 6664 SPRINT SPECTRUM L.P. 340   2010-10-04   
810-210 A Flint MI 6664 SPRINT SPECTRUM L.P. 340      
810-228 A Flint MI 6664 SPRINT SPECTRUM L.P. 340   2012-08-27   
810-259 A Flint MI 6664 SPRINT SPECTRUM L.P. 340   2012-09-10   
810-293 A Flint MI 6664 SPRINT SPECTRUM L.P. 340   2010-10-03   
810-423 A Flint MI 6664 SPRINT SPECTRUM L.P. 340      
810-449 A Flint MI 6664 SPRINT SPECTRUM L.P. 340      
810-610 A Flint MI 6664 SPRINT SPECTRUM L.P. 340      
810-620 A Flint MI 6664 SPRINT SPECTRUM L.P. 340   2010-05-24   
810-772 A Brighton MI 6664 SPRINT SPECTRUM L.P. 340      
810-893 A Flint MI 6664 SPRINT SPECTRUM L.P. 340   2010-12-31   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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